es relative to the average kinetic energy of hydrogen

7. A methanol powered car produces CO₂ when it runs. Does that mean it is contributing to global warming? (A) No, if the methanol was produced from recently living biomass (B) Yes, if the methanol was produced from recently living biomass (C) Yes, if the methanol was produced from solar power (D) No, if the methanol was produced from natural gas. 8. The density of compressed natural gas is 60 grams per liter. If a car were powered by an engine that burned natural gas (similar to a gasoline engine), how large a compressed natural gas tank would it need to have the same range as a standard gasoline car? (A) about 3 times bigger than a standard car's gasoline tank (B) about the same as a standard car's gasoline tank (C) about 20 times bigger than a standard car's gasoline tank (D) about 10 times bigger than a standard car's gasoline tank

Mercury oxide (HgO) readily decomposes when heated. If it takes 90.8 kJ to decompose one mole of HgO, how much heat is required to produce 11 kg of Mercury (Hg)?

The reaction shown below represents the formation reaction of water. 2 H2 (g)   +   O2 (g)   →   2 H2O (g)

The heat capacity of a substance can be obtained by multiplying its mass by its specific heat. Specific heat is defined as the amount of heat that must be supplied to the unit mass of the substance to raise its temperature by one unit. According to this, indicate the units in which the heat capacity is measured.

The amount of energy required to raise the temperature of a substance by 1 K (1 °C) is its heat capacity. If the amount of the substance heated is one gram, it is the ........ heat

The units for the answer is KJ/mol. But this answer says joules. why is that?

As the average kinetic energy of the substance increases, the termpature of the sample...

Hess's Law Prelab Questions Name Section 1. A thermometer placed in a solution undergoing a chemical reaction indicates an increase in temperature as the reaction proceeds. Is this reaction endothermic or exothermic? Describe if heat energy is lost or gained from the reaction (the system) to the surroundings. What is the sign of the enthalpy change (AH) of this reaction? of aola) Goules)

(a) What is the theoretical yield of ammonia (in grams) if 16.55 grams of nitrogen gas and 10.15 grams of hydrogen gas are allowed to react? (b)Based on your theoretical yield, what is the percent yield of ammonia if only 8.33 grams of ammonia are produced? (c)How much heat energy (in kJ) will be absorbed or released if 8.33 grams of ammonia are produced? State whether the energy will be absorbed or released.